What is the solution to the system of equations y = -4/5x + 6 and y = -30 a) (45,-30) b) (-30,30) c) (-30,45) d) (30,-30)

Prove the divisibility of the following numbers: 25^9 + 5^7 is divisible by 30.also, read as (25 to the power of 9) + (5 to the power of 7) is divisible by 30. blank x 30what is the blank? ( it should be expressed in exponent form)